Allow regtest tool to be treated as a sync peer.
Allow regtest tool to be treated as a sync peer.

tb00/btcd,jongillham/btcd,davecgh/btcd,jcmincke/dcrd,btcsuite/btcd,runeaune/btcd,Roasbeef/btcd,1d4Nf6/btcd,btcsuitereleases/btcd,btcsuite/btcd,jimmysong/btcd,runeaune/btcd,DanielKrawisz/btcd,glv2/ppcd,pkothbauer/btcd,danoctavian/btcd,ltcsuite/ltcd,stevenroose/btcd,sysbot/btcd,dajohi/btcd,ppcsuite/ppcd-old,Dirbaio/btcd,aakselrod/btcd,jongillham/btcd,dan-da/btcd,soapboxsys/ombfullnode,pkothbauer/btcd,danoctavian/btcd,jrick/dcrd,hectorj/btcd,adiabat/btcd,btcsuitereleases/btcd,ltcsuite/ltcd,tb00/btcd,toddfries/btcd,ppcsuite/ppcd,hectorj/btcd,decred/dcrd,qchain/btcd,jrick/btcd,ppcsuite/ppcd,Stash-Crypto/btcd,wallclockbuilder/btcd,jimmysong/btcd,ppcsuite/ppcd-old,aakselrod/btcd,wallclockbuilder/btcd,cqswxj2013/btcd,dan-da/btcd,qchain/btcd,cjepson/btcd,Roasbeef/btcd,mathiasrw/btcd,BitGo/prova,Dirbaio/btcd,Evil-Coin/Evil,jrick/btcd,Stash-Crypto/btcd,Dirbaio/btcd,stevenroose/btcd,cqswxj2013/btcd,glv2/ppcd,davecgh/btcd,toddfries/btcd,FactomProject/btcd,jrick/btcd,decred/dcrd,FactomProject/btcd,sysbot/btcd,jcmincke/dcrd,Cleawing/btcd,mathiasrw/btcd,cjepson/btcd,CryptocurrencyCabal/htcd,dajohi/btcd,soapboxsys/ombfullnode,Evil-Coin/Evil,CryptocurrencyCabal/htcd,BitGo/prova,dajohi/btcd,DanielKrawisz/btcd,jcmincke/dcrd,Cleawing/btcd,jrick/dcrd,adiabat/btcd,1d4Nf6/btcd